Shaft coupling



May 13 19. 4.. 1,493,582

I. F. WEBB I SHAFT COUPLING Filed Dec. 7, 1920 WETNESSES: INVENTOR ATTORNEY Patented May 13, 1 924.

tJNETfiD STATES PATENT orrica.

IRVING r. WEBB, or ELIZABETH, new means, ASSIGNOR '].0 ran smenn MANU- FACTURING COMPANY, 01? ELIZABETH, NEW JERSEY, A. CQRPORA'IION OF NEW JERSEY.

snarrr COUPLING.

Application filed December 7, 1920. Serial No. 428,866.

To all whom 2'2? may concern:

Be it known that I, InvINc F. WEBB, a cit izen of the United States, residing at El1za-' beth, in the county of Un on and State of- New Jersey, have invented certain new and useful Improvements in Shaft Couplings, of which the following is a specification, refer-= ence being had therein to the accompanying drawings.

This invention relates to shaft-couplings of the clutch-roll type and has for an object to provide animproved and simplified shaft coupling which may be easily assembled and taken apart without the exercise of particular care and attention to prevent misplacement or loss of the clutch-roll or rolls. Further objects of the invention will appear from the following description and claims.

The invention, as embodied in a shaft-coupling, comprises a hollow cylindrical membcr adapted to be entered by abutted shaft sections and having at each end an eccentric chamber. Each shaft-section has mounted thereon a clutch-roll which may be assembled in operative position relative to the shaft-section before the shaft-section is inserted in the hollow cylindrical member. The shaft-section has fixed thereto a clutclrroll carrier which may be in the form of a collar fitted to a relatively large concentric chamber in the hollow coupling member. The collar forms the support for the clutch-roll which has its opposite reduced ends journaled in apertures in the inner face of the collar and a cheek-piece held in spaced relation to the inner face of the collar by suitable supporting means mounted on the latter. The concentric chamber which receives the collar, being as large or larger than the eccentric chamber, permits insertion or removal of the shaft-section, collar and clutclrroll, as a unitary assembly.

In the accompanying drawings, Fig. 1 is a longitudinal sectional view of the coupling device as embodied in a shaft-coupling. Fig. 2 is a transverse sectional view on the line 22, Fig. 1.

As represented in the drawings, the coupling member 1 is in the form of a hollow cylinder having inner and outer concentric chambers 2 and 3, respectively, and the in termediate eccentric chambers 4. The chambers 2, which are in reality merged into a single chamber, slidably receive the abutted ends of the shaft-sections 5. The outer concentric chambers 3 are larger than the chambers 2 and 4 and slidably receive the collars 6 which are preferably fixed by set-screws 7 to the shaft-sections 5. Disposed within the eccentric chambers 4 are the clutch-rolls 8. These rolls are preferably each carried by a corresponding collar 6 and may be assembled in correct position on the respective shaft-section before such shaft-section is inserted in the hollow member 1. When the shaft-section is removed, the collar 6 and clutch-roll 8 come with it and there is no danger of the clutch-roll 8 dropping out of the hollow member 1 and being lost.

The clutch-roll 8 may conveniently be mounted on the collar 6 by providing the latter with a pair of spaced supporting pins 9 projecting into the eccentric chamber L and carrying at their free ends the cheekpiece 10. The cheek-piece 10 and the inner face of the collar 6 are formed with opposed apertures 11 loosely receiving the trunnions 12 formed at the opposite ends of the clutchrolls.

It will be evident that when the direction of rotation of the shaft 5 is reversed, the shaft will be unlocked from the hollow member 1 and, since the clutch-roll is mounted firmly on the shaft, it follows that a minimum turning movement of the shaft is required to carry the roll to a position locking the shaft to the hollow member for rotation in the opposite direction. I

It is important that the clutch-roll chambers be open at their ends adjacent the ends of the body member, as this feature, in conjunction with the clutch-rolls, which are connected to turn with the shaft-sections, permits of the assembling of the clutch rolls on theshaft-sections preparatory to insertion of the latter in the body member.

Having thus set forth the nature of the invention, what I claim herein is 1. In a coupling device, the combination with a hollow member having concentric and eccentric chambers, of a shaft-section enterin said chambers, a clutch-element carrier tig tly secured to said shaft, and a clutchelement mounted on said carrier and removable from and replaceable in said carrier and eccentric chamber together with saidshaft as a unitary assembly.

2. In a coupling device, the combination with a member having inner and outer concentric cylindrical chambers of relatively small and large diameter, respectively, and an intermediate cylindrical chamber eccentric to said concentric chambers of a shaft fitting said inner chamber, a collar fitting said outer chamber, a screw for tightly securing said collar to said shaft, and a clutchroll rotatably carried by said collar and p0- sitioned between said shaft and the wall of said eccentric chamber.

3. In a coupling device, the combination with a member having inner and outer con centric chambers of relatively small and large diameter, respectively, and an intermediate eccentric chamber, of ashaft vfitting said inner chamber, a collar secured to said shaft and fitting said outer chamber, supporting means fixed to said collar. and projecting into said eccentric chamber, a cheek-piece carried by said supporting means, and a solid clutch-roll journaledbetween said cheek-piece and the inner face of said collar and positioned between said ihaft and the Wall of said eccentric cham- 4:. In a coupling device, the combination of a body member having a shaft aperture and an eccentric clutch-roll chamber adjacent the shaft aperture and open at its end adjacent the end of the body mei'nber, of a clutch-rolladapted to be received in said chamber, and means for holding said clutchroll in assembled relation with said shaft section preparatory to insertion of the latter in the body member, said means being secured to rotate with the said shaft and car ry the clutch-roll into wedging relation betweenthe shaft and the wall of the clutch roll chamber.

In testimony whereof, I have signed my name to this specification.

IRVING F. WEBB Certificate of Correction.

It is hereby certified that in Letters Patent No. 1,493,582, granted May 13, 1924, upon the application of Irving F. ebb, of Elizabeth, New Jersey, for an improvement in Shaft Couplings, an error appears in the printed specification requiring correction as follows: Page 1, after line 96 insert the paragraph I The incention is not, 0 7 course, limitetl to its use in duplicate for coupling abuttecl shaft-sections, but may be usecl for coupling the shaft to a hollow member of any of the nations types commonly usecl in machinery; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Oflice.

Signed and sealed this 15th day of July, A. D. 192 4:.

SEAL THOMAS E. ROBERTSON,

Commtissioner of Patents. 

